Why does my GMC 2500 have a Def low message?
Why does my GMC 2500 have a Def low message?
During cold temperature conditions a dealer may encounter a customer vehicle with a DEF low message or a speed limiting message even if the vehicle is known to be full of DEF. Additionally, the dealer may encounter a customer vehicle with a DEF range that does not reset after a refill event.
Why is my Def warning not clear on my GMC?
If the vehicle has been driven for a few miles, the ignition has been turned off (allowing the ECM to go to sleep for at least 5 minutes), and the DIC will not update, the message may have become latched into the ECM. There are three different reasons for a DEF (Diesel Exhaust Fluid) warning message to set.
Why does my GMC Duramax have low Def range?
There is a calibration for the vehicle computer update .This will need to be done by a dealer. dealer may encounter a customer vehicle with a DEF (diesel exhaust fluid) low message, speed limiting message, or a DEF range not resetting after a refill.
What does speed limited on GMC Duramax mean?
200 miles down the road the “Speed Lmited to 55 mph at next Restart” message shows up. WTF, now I am pissed. I pull over, add DEF while running, and call a dealership 20 miles down road. I pull in to a parking lot next to dealer, shut truck off and unhook trailer. Start truck and get svc def and speed limited message.
Why does my GMC Truck have a Def warning?
In operating temperatures of -9C / 15F or less, customers may comment on an “Exhaust Fluid Range” message displaying on the DIC even though the DEF fluid has been filled or is known to be full. This is likely because the truck is in the “Frozen Tank Status”. This is usually an intermittent condition.
During cold temperature conditions a dealer may encounter a customer vehicle with a DEF low message or a speed limiting message even if the vehicle is known to be full of DEF. Additionally, the dealer may encounter a customer vehicle with a DEF range that does not reset after a refill event.
What’s the Def indicator on a Silverado Sierra?
The messages alternate every 5 seconds until acknowledged by the driver; however, the 89 km/h (55 mph) Max Speed on Restart, remains displayed on the DIC. The DEF Indicator in the instrument panel is illuminated. Warning Level 2 automatically advances to Warning Level 3 at the next ignition cycle.
200 miles down the road the “Speed Lmited to 55 mph at next Restart” message shows up. WTF, now I am pissed. I pull over, add DEF while running, and call a dealership 20 miles down road. I pull in to a parking lot next to dealer, shut truck off and unhook trailer. Start truck and get svc def and speed limited message.
