For 1990-2009 cars

# OnStar TBT (Turn By Turn) And Digit Displays Location - keywords call cellular communication data digit digital hud information operation radio turn unable use

Subject: | OnStar TBT (Turn by Turn) and digit displays location

Models: | 2006-2007 Buick Lucerne

| 2007 Buick Rainier, Rendezvous and Terraza

| 2006-2007 Cadillac DTS and STS

| 2007 Cadillac SRX and XLR

| 2008 Cadillac CTS

| 2007-2008 Cadillac Escalade (All)

| 2006-2007 Chevrolet Impala and Monte Carlo

| 2007 Chevrolet Cobalt, Corvette, Colorado, Equinox, HHR, Malibu, Uplander and Trailblazer (All)

| 2007-2008 Chevrolet Avalanche, Silverado, Suburban and Tahoe

| 2007 GMC Acadia

| 2007-2008 GMC Seirra, Yukon and Yukon Denali

| 2007 Hummer H3

| 2007 Pontiac G6, Grand Prix, Montana SV6, Solstice and Torrent

| 2007 Saab 9-7x

| 2006-2007 Saturn VUE

| 2007 Saturn Aura, ION, Outlook, Relay and Sky

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

### Condition/Concern:

Turn by Turn (TBT) and Digit displays for all GM Passenger and light duty trucks equipped with OnStar (RPO UE1) generation 7. OnStar TBT is only available in markets that support Packet Data - 1xRTT (One Times Radio Transmission Technology) technology.

### Recommendation/Instructions:

Important Note: Confirm the vehicle is equipped with OnStar generation 7.0 or above. Then refer to the compatibility list below.

Vehicle | Vehicle MY | Radio RPO | Turn-By-Turn Interface | Normal OnStar Displays
|  |  | Display Type | Audio | Display Type
|  |  | Radio | DIC | HUD | Mono-mix(soft mute) | Mono(hard mute) | Radio | DIC | HUD
Acadia | 2007 | US8, US9, UVA | Y | N | n/a | Y | N | Y | N | n/a
U3R, UZR | N | Y | n/a | N | Y | N | Y | n/a
AURA | 2007 | US8, US9 | Y | N | n/a | N | Y | Y | N | n/a
Avalanche | 2007 | UVA, US8, US9 | N | Y | n/a | N | Y | N | Y | n/a
U3U, UVB | N | Y | n/a | N | Y | N | Y | n/a
Avalanche | 2008 | UVA, US8, US9 | N | Y | n/a | N | Y | N | Y | n/a
U3U, UVB | N | Y | n/a | N | Y | N | Y | n/a
Cobalt | 2007 | U1C | N | N | n/a | N | Y | N | N | n/a
US8, US9 | Y | N | n/a | N | Y | Y | N | n/a
Colorado | 2007 | US8, UC6 | N | N | n/a | N | Y | Y | N | n/a
UM7 | N | N | n/a | N | Y | Y | N | n/a
Corvette | 2007 | US8, US9 | N | N | N | N | Y | N | N | N
U3U | N | N | N | N | Y | N | N | N
CTS | 2008 | U2R | Y | N | n/a | Y | N | Y | N | n/a
U2S | N | Y | N | N | Y | N | Y | n/a
U2T | Y | N | n/a | Y | N | Y | N | n/a
U2X, U2Y, UAV | N | Y | N | N | Y | N | Y | n/a
DTS | 2006 | US8, US9, U3R | N | Y | n/a | N | Y | N | Y | n/a
DTS | 2007 | US8, US9 | Y | N | n/a | N | Y | Y | N | n/a
U3R | N | Y | n/a | N | Y | N | Y | n/a
Envoy (all) | 2007 | UC6, UB0, UB1, US8 | N | N | n/a | N | Y | Y | N | n/a
UM8 | N | N | n/a | N | Y | Y | N | n/a
UA4 | N | N | n/a | N | Y | Y | N | n/a
Escalade (all) | 2007 | U3R | N | Y | n/a | N | Y | N | Y | n/a
YQ3 | N | Y | n/a | N | Y | N | Y | n/a
Escalade (all) | 2008 | U3R | N | Y | n/a | N | Y | N | Y | n/a
YQ3 | N | Y | n/a | N | Y | N | Y | n/a
Equinox | 2007 | U1C | N | Y | n/a | N | Y | N | Y | n/a
US8, US9 | Y | N | n/a | Y | N | Y | N | n/a
U3U | N | Y | n/a | N | Y | N | Y | n/a
UUC | N | Y | n/a | Y | N | N | Y | n/a
G6 | 2007 | U1C | N | N | n/a | N | Y | N | N | n/a
UN0, UC6 | N | N | n/a | N | Y | Y | N | n/a
Grand Prix | 2007 | All | N | Y | n/a | N | Y | N | Y | n/a
H3 | 2007 | US8, UB0, UC6 | N | N | n/a | N | Y | Y | N | n/a
UM8 | N | N | n/a | N | Y | Y | N | n/a
HHR | 2007 | U1C | N | N | n/a | N | Y | N | N | n/a
US8, US9 | Y | N | n/a | N | Y | Y | N | n/a
Impala | 2006 | U1C | N | Y | n/a | n/a | Y | N | Y | n/a
US8,US9 | N | Y | n/a | Y | N | Y | N | n/a
Impala | 2007 | U1C | N | Y | n/a | n/a | Y | N | Y | n/a
US8,US9 | Y | N | n/a | Y | N | Y | N | n/a
ION | 2007 | U1C | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a
US8, US9 | n/a | n/a | n/a | n/a | n/a | Y | N | n/a
LaCrosse | 2007 | All | N | Y | n/a | N | Y | N | Y | n/a
Lucerne | 2006 | U1C | N | Y | n/a | n/a | Y | N | Y | n/a
US8, US9 | Y | N | n/a | Y | N | N | Y | n/a
U3U | N | Y | n/a | N | Y | N | Y | n/a
Lucerne | 2007 | U1C | N | Y | n/a | n/a | Y | N | Y | n/a
US8, US9 | Y | N | n/a | Y | N | N | Y | n/a
U3U | N | Y | n/a | N | Y | N | Y | n/a
Malibu | 2007 | U1C | N | N | n/a | N | Y | N | N | n/a
UN0, UC6 | N | N | n/a | N | Y | Y | N | n/a
Montana | 2007 | US8, US9 | N | Y | n/a | N | Y | N | Y | n/a
U3U | N | Y | n/a | N | Y | N | Y | n/a
Monte Carlo | 2006 | U1C | N | Y | n/a | n/a | Y | N | Y | n/a
US8,US9 | N | Y | n/a | Y | N | Y | N | n/a
Monte Carlo | 2007 | U1C | N | Y | n/a | n/a | Y | N | Y | n/a
US8,US9 | Y | N | n/a | Y | N | Y | N | n/a
Outlook | 2007 | US8, US9, UVA | Y | N | n/a | Y | N | Y | N | n/a
U3R, UZR | N | Y | n/a | N | Y | N | Y | n/a
Rainier | 2007 | UC6, UB0, UB1, US8 | N | N | n/a | N | Y | Y | N | n/a
UM8 | N | N | n/a | N | Y | Y | N | n/a
UA4 | N | N | n/a | N | Y | Y | N | n/a
RELAY | 2007 | US8, US9 | N | Y | n/a | N | Y | N | Y | n/a
U3U | N | Y | n/a | N | Y | N | Y | n/a
Rendezvous | 2007 | U1P, UC6 | N | N | N | N | Y | Y | N | N
UM8 | N | N | N | N | Y | N | Y | N
Saab 9-7 | 2007 | UC6, UB0, UB1, US8 | N | N | n/a | N | Y | Y | N | n/a
UM8 | N | N | n/a | N | Y | Y | N | n/a
UA4 | N | N | n/a | N | Y | Y | N | n/a
Sierra LD & HD | 2007 | UM7, U1C | N | Y | n/a | N | Y | N | Y | n/a
US8, US9, UVA | N | Y | n/a | N | Y | N | Y | n/a
U3U, UVB | N | Y | n/a | N | Y | N | Y | n/a
Sierra LD & HD | 2008 | UM7, U1C | N | Y | n/a | N | Y | N | Y | n/a
US8, US9, UVA | N | Y | n/a | N | Y | N | Y | n/a
U3U, UVB | N | Y | n/a | N | Y | N | Y | n/a
Silverado LD & HD | 2007 | UM7, U1C | N | Y | n/a | N | Y | N | Y | n/a
US8, US9, UVA | N | Y | n/a | N | Y | N | Y | n/a
U3U, UVB | N | Y | n/a | N | Y | N | Y | n/a
Silverado LD & HD | 2008 | UM7, U1C | N | Y | n/a | N | Y | N | Y | n/a
US8, US9, UVA | N | Y | n/a | N | Y | N | Y | n/a
U3U, UVB | N | Y | n/a | N | Y | N | Y | n/a
SKY | 2007 | U1C | N | N | n/a | N | Y | N | N | n/a
US8, US9 | N | N | n/a | N | Y | N | N | n/a
Solstice | 2007 | U1C | N | N | n/a | N | Y | N | N | n/a
US8, US9 | Y | N | n/a | N | Y | Y | N | n/a
SRX | 2007 | U2S, U2R | Y | N | n/a | Y | N | Y | N | n/a
U2V | N | Y | n/a | N | Y | N | Y | n/a
STS | 2006 | YQ1, YQ2, YQ4 | N | Y | N | N | Y | N | Y | N
STS | 2007 | YQ1, YQ2, YQ4 | N | Y | N | N | Y | N | Y | N
Suburban | 2007 | UVA, US8, US9 | N | Y | n/a | N | Y | N | Y | n/a
U3U, UVB | N | Y | n/a | N | Y | N | Y | n/a
Suburban | 2008 | UVA, US8, US9 | N | Y | n/a | N | Y | N | Y | n/a
U3U, UVB | N | Y | n/a | N | Y | N | Y | n/a
Tahoe | 2007 | UVA, US8, US9 | N | Y | n/a | N | Y | N | Y | n/a
U3U, UVB | N | Y | n/a | N | Y | N | Y | n/a
Tahoe | 2008 | UVA, US8, US9 | N | Y | n/a | N | Y | N | Y | n/a
U3U, UVB | N | Y | n/a | N | Y | N | Y | n/a
Terraza | 2007 | US8, US9 | N | Y | n/a | N | Y | N | Y | n/a
U3U | N | Y | n/a | N | Y | N | Y | n/a
Torrent | 2007 | U1C | N | Y | n/a | N | Y | N | Y | n/a
US8, US9 | Y | N | n/a | Y | N | Y | N | n/a
U3U | N | Y | n/a | N | Y | N | Y | n/a
UUC | N | Y | n/a | Y | N | N | Y | n/a
Trailblazer (all) | 2007 | UC6, UB0, UB1, US8 | N | N | n/a | N | Y | Y | N | n/a
UM8 | N | N | n/a | N | Y | Y | N | n/a
UA4 | N | N | n/a | N | Y | Y | N | n/a
Uplander | 2007 | US8, US9 | N | Y | n/a | N | Y | N | Y | n/a
U3U | N | Y | n/a | N | Y | N | Y | n/a
VUE | 2006 |  | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a
VUE | 2007 |  | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a
XLR | 2007 | U2R | N | N | N | N | Y | N | N | N
Yukon (all except Denali) | 2007 | UVA, US8, US9 | N | Y | n/a | N | Y | N | Y | n/a
U3U, UVB | N | Y | n/a | N | Y | N | Y | n/a
Yukon (all except Denali) | 2008 | UVA, US8, US9 | N | Y | n/a | N | Y | N | Y | n/a
U3U, UVB | N | Y | n/a | N | Y | N | Y | n/a
Yukon Denali (only) | 2007 | UVA, US8, US9 | N | Y | n/a | N | Y | N | Y | n/a
U3U, UVB | N | Y | n/a | N | Y | N | Y | n/a
Yukon Denali (only) | 2008 | UVA, US8, US9 | N | Y | n/a | N | Y | N | Y | n/a
U3U, UVB | N | Y | n/a | N | Y | N | Y | n/a

TV2K see PIC4510 attachment in the CCG data base.

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.